Photophysical and electrical properties of polyphenylquinolines containing carbazole or indolo[3,2-b]carbazole fragments as new optoelectronic materials

Светличный, В. М.; Aleksandrova, E. L.; Myagkova, L. A.; Matyushina, N. V.; Некрасова, Т. Н.; Smyslov, R. Yu.; Тамеев, А. Р.; Stepanenko, Sergiy; Ванников, А. В.; Kudryavtsev, V. V.

doi:10.1134/s1063782611100204

Cited by 21 publications

(14 citation statements)

References 8 publications

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“…1 and 2, respectively. The results for all the PPQs under study are correlated with those obtained previously [1][2][3]. The luminescence spectra (Fig.…”

Section: Introductionsupporting

confidence: 88%

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Luminescence-kinetic spectroscopy of compound complexes of polyphenylquinolines

et al. 2015

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Polyphenylquinolines (PPQs), which are compound donor-acceptor complexes, are studied by luminescence kinetic spectroscopy. It is shown that, as the π system becomes stronger on passing from (O, C) to (O, IC) and (PhA, C), an increase in the lifetime τ of the excited state is first observed, and for the strongest charge transfer complex PPQ (PhA, IC), whose luminescence kinetics is described by two exponentials, the lifetime decreases to a value equal to τ of PPQ (O, C). This indicates that this complex has two emitting cen ters localized in the arylene moiety and in the phenylquinoline ring and thereby confirms a previously made conclusion that compound donor-acceptor complexes are formed in polyphenylquinolines with a branched π system of compound D-A complexes.

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“…1 and 2, respectively. The results for all the PPQs under study are correlated with those obtained previously [1][2][3]. The luminescence spectra (Fig.…”

Section: Introductionsupporting

confidence: 88%

“…Polymers with these bridge groups have been syn thesized previously and exhibited rather high photo sensitivity characteristics [2,3]. The PPQs under study (PPQ 1-PPQ 4) were synthesized as was per formed in [4] by the Friedläender reaction [5].…”

Section: Introductionmentioning

confidence: 99%

Luminescence-kinetic spectroscopy of compound complexes of polyphenylquinolines

et al. 2015

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“…In addition to the mentioned traditional condensa tion polymers, there is scarce information about the synthesis and properties of other types of polymers that have rapidly developed in recent years [301][302][303][304][305][306][307][308][309][310][311][312][313][314]: poly(arylene ether sulfide sulfones), polyphenylquin olines, polyphenylquinones, polybenzotriazoleim ides, polyamidines, poly[bis(itaconimides)], and poly(arylene)thiophenones. …”

Section: Discussionmentioning

confidence: 99%

Achievements in polycondensation and condensation polymers

Sapozhnikov

Vygodskii

2015

Polym. Sci. Ser. B

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“…A nitrogen-containing donor fragment, for example, carbazole or indolo [3,2-b] carbazole, in the UV spectra, shifts the absorption edge of PPQ (PA, Ar) significantly (up to 70 nm) to the long-wavelength region and the photosensitive and transport properties are enhanced [8]. Synthesized PPQs, which have different aromatic Ar fragments in the structure of the elementary unit, have high values of carrier mobility [9] and exhibit intensive luminescence in the visible spectral region in solution and in composites [7,10,11,12,13]. The obtained characteristics for a number of studied PPQs indicate the possibility of their use as materials for optoelectronics, in particular, polymer light-emitting diodes.…”

Section: Introductionmentioning

confidence: 99%

“…For preparing organic light emitting diodes and photovoltaic cells, various types of electron–acceptor compounds such as perylene diimide, diketopyrrolopyrrole, benzothiadiazole are introduced into the photoactive materials [9,17,18,19,20]. 2,1,3-Benzothiadiazole (DBT), which either enhances photophysical properties of a polymer chain or serves as a dopant molecule, is of a special compound in this list [19].…”

Section: Introductionmentioning

confidence: 99%

Conductivity and Density of States of New Polyphenylquinoline

et al. 2019

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Electrical, photoelectrical, and optical properties of thin films of a new heat-resistant polyphenylquinoline synthesized using facile methods were investigated. An analysis of the obtained temperature dependences of the dark conductivity and photoconductivity indicates the hopping mechanism of conductivity over localized states arranging at the energy distance of 0.8 eV from the Fermi level located inside the band gap of the investigated material. The optical band gap of the studied material was estimated from an analysis of the spectral dependences of the photoconductivity and absorption coefficient before (1.8–1.9 eV) and after (2.0–2.2 eV) annealing at temperatures exceeding 100 °C. The Gaussian character of the distribution of the localized states of density inside the band gap near the edges of the bands was established. A mechanism of changes in the optical band gap of the investigating polymer under its annealing is proposed.

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Photophysical and electrical properties of polyphenylquinolines containing carbazole or indolo[3,2-b]carbazole fragments as new optoelectronic materials

Cited by 21 publications

References 8 publications

Luminescence-kinetic spectroscopy of compound complexes of polyphenylquinolines

Luminescence-kinetic spectroscopy of compound complexes of polyphenylquinolines

Achievements in polycondensation and condensation polymers

Conductivity and Density of States of New Polyphenylquinoline

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